Finding the Third Proportional to 31,262 and 67,412

Step by Step Solution

1. Step 1: Write the proportion equation
   31,262 : 67,412 = 67,412 : x
2. Step 2: Convert to fraction form
   31,262/67,412 = 67,412/x
3. Step 3: Cross multiply
   31,262x = 67,412 × 67,412
4. Step 4: Simplify right side
   31,262x = 4,544,377,744
5. Step 5: Solve for x
   x = 4,544,377,744/31,262
6. Step 6: Final answer
   x = 145,364.27